Revert 138212 - Implement High Contrast mode for Chrome OS.

chrome/browser/chromeos/accessibility/accessibility_util.cc

Index: chrome/browser/chromeos/accessibility/accessibility_util.cc
===================================================================
--- chrome/browser/chromeos/accessibility/accessibility_util.cc	(revision 138238)
+++ chrome/browser/chromeos/accessibility/accessibility_util.cc	(working copy)
@@ -6,8 +6,6 @@
 
 #include <queue>
 
-#include "ash/high_contrast/high_contrast_controller.h"
-#include "ash/shell.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
@@ -166,10 +164,6 @@
   PrefService* pref_service = g_browser_process->local_state();
   pref_service->SetBoolean(prefs::kHighContrastEnabled, enabled);
   pref_service->CommitPendingWrite();
-
-#if defined(USE_ASH)
-  ash::Shell::GetInstance()->high_contrast_controller()->SetEnabled(enabled);
-#endif
 }
 
 void EnableScreenMagnifier(bool enabled) {
@@ -211,16 +205,6 @@
   return spoken_feedback_enabled;
 }
 
-bool IsHighContrastEnabled() {
-  if (!g_browser_process) {
-    return false;
-  }
-  PrefService* prefs = g_browser_process->local_state();
-  bool high_contrast_enabled = prefs &&
-      prefs->GetBoolean(prefs::kHighContrastEnabled);
-  return high_contrast_enabled;
-}
-
 void MaybeSpeak(const std::string& utterance) {
   if (IsSpokenFeedbackEnabled())
     Speak(utterance);